From a large track (300 mile oval shape) I performed the command "Create Route from Selected Track". The route now follows precisely the track.
Now, I want to modify the route but cannot. Whenever I attempt to as an example: add a shaping point to the route, the entire route collapses to a fastest route from the start to the attempted shaping point. I have attempted to add a shaping point at the extreme end of the route and the route collapses into a single route following same path to and from the extreme end.
How do I modify a route without destroying the remaining existing path of the route?
The only way I can see now, is to trace a route over the track.
Do you have any ideas on how to modify a route made from a track?
Thank you